Origin and function of the yolk sac in primate embryogenesis
Why do human embryos need a yolk sac and how does it form? This Perspective by Thorsten Boroviak and Connor Ross explores the development and function of the yolk sac in primate embryogenesis.
Connor Ross, Thorsten E. Boroviak
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Definitive Hematopoiesis in the Yolk Sac Emerges from Wnt-Responsive Hemogenic Endothelium Independently of Circulation and Arterial Identity [PDF]
Adult-repopulating hematopoietic stem cells (HSCs) emerge in low numbers in the midgestation mouse embryo from a subset of arterial endothelium, through an endothelial-to-hematopoietic transition.
Conway, Simon J. +4 more
core +2 more sources
Morphology of the avian yolk sac [PDF]
AbstractThe avian yolk sac is a multifunctional extraembryonic organ that serves not only as a site of nutrient (yolk) absorption, but also for early hemopoiesis, and formation of blood vessels. Although the yolk sac membrane being specialized to function as an extraembryonic absorptive organ, it is neither morphologically nor functionally part of the ...
J. M. Starck
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Direct Effects of Microalgae and Protists on Herring (Clupea harengus) Yolk Sac Larvae.
This study investigated effects of microalgae (Rhodomonas baltica) and heterotrophic protists (Oxyrrhis marina) on the daily growth, activity, condition and feeding success of Atlantic herring (Clupea harengus) larvae from hatch, through the end of the ...
Björn Illing +3 more
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Yolk sac macrophage progenitors traffic to the embryo during defined stages of development
Tissue-resident macrophages are derived from yolk sac progenitors but how and when these progenitors enter is unclear. Here the authors use fate mapping and intravital microscopy to track the movement of resident macrophage precursors from the yolk sac ...
C. Stremmel +21 more
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ZBTB16: a novel sensitive and specific biomarker for yolk sac tumor [PDF]
Guang‐Qian Xiao +6 more
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A rare case of huge intracranial yolk sac tumor presenting as an orbital mass in an infant: case report and literature review. [PDF]
Arega G +6 more
europepmc +3 more sources
Background: The yolk sac is a small, membranous structure, which is situated outside the embryo and has a variety of functions during embryonic development.
Geetanjali Srivastava +5 more
doaj +1 more source
Maternal derived antibodies and avian β-defensins expression patterns and their correlation in the yolk sac tissue of different chicken breeds (Gallus gallus). [PDF]
Ayalew H +8 more
europepmc +2 more sources
Yolk sac development, function and role in rodent pregnancy
During the early phases of embryonic development, the yolk sac serves as an initial placenta in many animal species. While in some, this role subsides around the end of active organogenesis, it continues to have important functions in rodents, alongside ...
A. Ornoy, Richard K. Miller
semanticscholar +1 more source

